2024/08/16 by Jamin Ali, Feng Xiao, Aleena Alam +13
Agricultural and Biological Sciences · #Insect and Pesticide Research #Insect-Plant Interactions and Control #Plant and animal studies
paper · doi:10.1111/eea.13506
openalex publication_date 2024/08/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Abstract Plants encounter a myriad of biotic and abiotic stresses throughout their life cycle, among which aphids pose a significant challenge as herbivorous insect pests. Aphids cause both direct damage through feeding and indirect damage by transmitting viruses. Given the growing concerns about insecticide resistance and the non‐target effects of synthetic insecticides, there is an urgent need to develop novel pest control strategies that are dependent on plant defence strategies. In this study, we assessed the effects of exogenous prohydrojasmon (PDJ), a derivative of jasmonic acid, at 24 h (PDJ 24 ) and 48 h (PDJ 48 ) post‐treatment on the cabbage aphid, Brevicoryne brassicae L. (Hemiptera: Aphididae), feeding on Brassica juncea L. (Brassicaceae). The impact of PDJ treatments was assessed by conducting performance bioassays (survival and fecundity) and behavioural bioassays (settlement and attraction to volatiles in an olfactometer). Our findings reveal that the exogenous application of PDJ did not significantly affect on the performance and behaviour of B. brassicae at 24‐h post‐treatment. However, PDJ treatment significantly reduced the performance of B. brassicae at 48‐h post‐treatment, and affected the behaviour in terms of reduced settlement on and attraction to volatiles of PDJ‐treated plants. These results suggest that PDJ has the potential to effectively induce defences in Brassica against sucking pests. This study provides valuable insights into possibility of employing PDJ as an alternative approach for sustainable pest management in agriculture.